To suppress the adverse effect of the gear windage phenomenon in the high-speed aeronautic industry. a shroud as an effective alternative strategy is usually to enclose gears to reduce the windage behaviors of high-speed gears. To deeply understand these no-load power losses. this paper proposes a new simulation methodology based on the Lattice Boltzmann method to study the windage lo... https://www.chiggate.com/3m-speedglas-9002nc-welding-helmet-fashion/